I'm not sure when my TBR (to be read) pile of books got out of hand. Maybe it started when I joined a professional writers group and started to buy members' books at signings. Then there were books purchased at conferences, books bought because publishers suggested reading books in their lines before submitting, and books published by my favorite authors. Sometimes someone gave me books they'd read, or I got books as gifts. I also liked to browse book stores. Some books have short shelf lives, so if you wanted those, you had to grab them while they were out.
Martin, Chelle's blog
Okay, I admit it. I became addicted to buying books around the time I started to write. Before that, I maybe bought one or two, read them, and took a break from reading until I felt like picking up a book again. I think leisure reading didn't appeal to me as much then because I was a perpetual student for so long. Who has time to read a best seller when you have so much reading to do for college?